Frequency cosine transform: A bridge between gradient based frequency transform and discrete cosine transform

Nanjing, Volume null, Issue null, 2008, Pages 612-617E.

Cited by: 0|Bibtex|Views12|DOI:https://doi.org/10.1109/ICNNSP.2008.4590423
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Abstract:

Discrete cosine transform(DCT) is one of the most powerful tools in image processing. In this paper, we show that each basis of the two dimensional discrete cosine transform (2D-DCT) is an ldquoeigenvectorrdquo of the frequency matrix which is used to obtain basis images of a two dimensional frequency transform (2D-FRT). We also connect t...More

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